Hilarity Definition
hĭ-lărĭ-tē, -lâr-, hī-
noun
Great merriment.
American Heritage
The state or quality of being hilarious.
Webster's New World
(uncountable) A great amount of amusement, usually accompanied by laughter.
Wiktionary
(countable) Something that induces laughter.
Wiktionary
Other Word Forms of Hilarity
Noun
Singular:
hilarityPlural:
hilaritiesOrigin of Hilarity
Middle English hilarite good spirits from Old French from Latin hilaritās from hilaris cheerful from Greek hilaros
From American Heritage Dictionary of the English Language, 5th Edition
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From Latin hilaritas, "cheerfulness", from adjective hilaris, "cheerful", ultimately from Greek, + noun of state suffix -tas.
From Wiktionary
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